The Apollo spacecraft : a chronology /
by Iran D. Ertel and Mary Louise Morse
- Washington, D.C. : Scientific and Technical Information Division, Office of Technology Utilization, National Aeronautics and Space Administration, 1964-
- v. : ill. ; 26 cm.
- NASA historical series NASA SP ; -4009. .
- United States. National Aeronautics and Space Administration. NASA historical series. .